[mrpcar]

I've had issues with my fuels injectors in the X5M 3 times within 20k miles, I always suspect if it was related to Costco gas, since I exclusively use Costco gas for all of our cars. Never had any issues.

After the dealer replaced all the injector last time I decided to stay away from Costco gas as I've read other people had fuel related issues with Costco gas.

After many hundred of miles, no issues cars runs great. I was running on fumes yesterday and the only gas station close by was Costco so I said what heck.

Immediately afterward the car was not running right, felt sluggish and slow. Not very responsive at all.

I forced myself to drive all over LA today, from 71 to 60 to 10 to 405 to 105 to 91. Traffic sucks! Used up about half of a tank and filled it up right away with Mobil gas.

So all I can say is stay away from Costco gas!